| 甘孜州色达县典型牵引式滑坡地质灾害形成机理分析--以甘孜州甲学乡甲热滑坡为例 |
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| 引用本文： | 罗雲丰,魏良帅.甘孜州色达县典型牵引式滑坡地质灾害形成机理分析--以甘孜州甲学乡甲热滑坡为例[J].探矿工程,2018,45(8):93-97. |
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| 作者姓名： | 罗雲丰 魏良帅 |
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| 作者单位： | 中国地质科学院探矿工艺研究所,中国地质科学院探矿工艺研究所 |
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| 摘 要： | 甲热滑坡位于甘孜州色达县甲学乡境内，属于典型的牵引式滑坡，滑坡体平均坡度约35°，主要由碎石土组成，滑坡长约195 m，宽约280 m，平均厚约15 m，滑坡体总方量约60万m3，属中型滑坡。滑坡坡体中上部变形现象较明显，若发生滑动，将直接威胁当地41户160人居民的生命财产安全。本文在进行野外现场基础地质调查后，对滑坡体的变形破坏机制进行了定性分析，并利用三位有限元数值模拟进行了定量分析，对以后研究同类滑坡的稳定性具有重要意义。
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| 关 键 词： | 牵引式滑坡 变形破坏机制 数值模拟 甲热滑坡 |
| 收稿时间： | 2018/7/18 0:00:00 |
| 修稿时间： | 2018/7/18 0:00:00 |
Analysis on Formation Mechanism of Geological Hazards of Typical Traction Landslide in Seda County of Ganzi Prefecture: An Example from the Jiare Landslide |
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| LUO Yun-feng and WEI Liang-shuai.Analysis on Formation Mechanism of Geological Hazards of Typical Traction Landslide in Seda County of Ganzi Prefecture: An Example from the Jiare Landslide[J].Exploration Engineering(Drilling & Tunneling),2018,45(8):93-97. |
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| Authors: | LUO Yun-feng and WEI Liang-shuai |
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| Institution: | Institute of Exploration Technology, CAGS,,Institute of Exploration Technology, CAGS |
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| Abstract: | Jiare landslide is located in Jiaxue Township of Seda County in Ganzi Prefecture and it is a typical traction landslide with average slope of the landslide body about 35°, it is mainly composed of gravel soil. The landslide is about 195m in length, 280m in width and 15m in average thickness. The total mass of the landslide body is about 600,000m3, which is a medium-sized landslide. At present, the deformation of the upper and middle parts of the landslide mass is obvious. Once the landslide occurs, it will directly threaten the safety of the life and property of 160 people in 41 local families. Based on the field geological survey, this paper makes a qualitative analysis on the deformation and failure mechanism of the landslide body and makes a quantitative analysis by using 3-dimensional finite element numerical simulation, which is of great significance for the study on the stability of the same kind of landslide. |
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| Keywords: | traction landslide deformation and failure mechanism numerical simulation Jiare landslide |
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